Step 1: Make sure you are ready to invest
Stocks can fall sharply. The S&P 500 had 20 losing years between 1928 and 2024, and in its worst year, 1931, it lost about 44%. Money you might need in the next few years does not belong in stocks. Before you start, check three things:
- High-interest debt. Paying off a credit card charging 20% or more is a guaranteed return no stock can promise. See how to pay off credit card debt.
- An emergency fund. A cash cushion keeps you from selling stocks at a loss when the car breaks down. Our emergency fund guide covers how much to keep.
- A time horizon of five years or more. The longer you can leave the money alone, the more likely you are to ride out downturns.
Step 2: Choose the right account
The account is the container. The stocks or funds go inside it. The container decides how your gains are taxed, so the order you fill accounts in matters.
| Account | 2026 contribution limit | Tax treatment | Best for |
|---|---|---|---|
| 401(k), 403(b) or 457 at work | $24,500 | Usually pre-tax; Roth option in many plans | Capturing any employer match first |
| Roth IRA | $7,500 (+$1,100 if 50 or older) | After-tax in; qualified withdrawals tax-free | People who expect equal or higher tax rates later |
| Traditional IRA | $7,500 (+$1,100 if 50 or older), shared with Roth IRA | May be deductible; taxed on withdrawal | People who want a deduction now |
| Taxable brokerage account | No limit | Dividends and gains taxed yearly as realized | Goals before retirement and savings beyond IRA limits |
Source: IRS Notice 2025-67 via 401k Specialist. Checked October 2026.
Roth IRA eligibility phases out in 2026 at modified adjusted gross income of $153,000 to $168,000 for single filers and $242,000 to $252,000 for married couples filing jointly. For a fuller comparison, read Roth IRA vs traditional IRA. If your employer offers a match, our 401(k) guide explains how to make sure you get all of it.
Step 3: Pick a broker
For a self-directed account, the big online brokers are similar on the basics. Most now charge $0 to buy and sell US stocks and ETFs online. Compare them on what is still different:
- Fractional shares. Fidelity lets you buy stocks and ETFs from $1. Schwab expanded fractional trading to most US stocks and ETFs with a $1 minimum in June 2026. Interactive Brokers offers fractional shares on more than 10,500 stocks and ETFs from $0.01. J.P. Morgan Self-Directed Investing covers 3,000+ stocks and ETFs from $5.
- Account types. Make sure the broker offers the IRA you want, not only taxable accounts.
- Interest on uninvested cash. Some brokers sweep idle cash into a low-rate bank account by default. Others use a money market fund.
- Fees that still exist. Look for account-transfer-out fees, broker-assisted trade fees, and transaction fees on outside mutual funds.
Check any firm on FINRA's free BrokerCheck tool. It shows a firm's licenses, history, disciplinary events and arbitration awards. Our broker comparison covers fees and cash rates at the major firms.
What protects your account
US brokerage accounts are usually covered by SIPC. If a member brokerage fails and customer assets are missing, SIPC protects up to $500,000 per customer, including up to $250,000 in cash. SIPC does not protect against losses when your investments fall in value. It also does not cover losses from bad advice, or assets such as commodity futures, fixed annuities and crypto that is not a registered security.
Step 4: Decide what to buy
Index funds: the default core
An index fund buys every stock in a market index, such as the S&P 500, at very low cost. Fidelity's FXAIX charges 0.015% a year, and Vanguard's VOO and iShares' IVV charge 0.03%. That works out to $1.50 to $3 a year per $10,000 invested. The case for index funds rests on a hard fact: most professionals do not beat them. S&P Dow Jones Indices reports that 79% of actively managed US large-cap funds trailed the S&P 500 in 2025, and 91.8% trailed it over 20 years. Our guide to S&P 500 index funds compares the main options.
Individual stocks: optional, and best kept small
Buying individual companies can be rewarding and educational. It also concentrates risk: one stock can fall 80% while the index barely moves. If you want to pick stocks, a common approach is to keep a diversified fund as the core and limit individual stocks to a share you could see drop sharply without derailing your plans. Before buying a company, be able to answer three questions: how does it make money, is that growing, and what are you paying for it relative to its earnings?
Diversification
Diversification means not depending on one company, one industry or one country. An S&P 500 fund holds about 500 large US companies, but leaves out smaller firms and foreign markets, and as of mid-2026 roughly 38% to 40% of it sat in its 10 largest holdings. A total-market or international fund, and bonds as you get closer to needing the money, broaden your exposure.
Step 5: Place your first order
- Fund the account by bank transfer. Most brokers let you link a checking account in a few minutes.
- Find the ticker, such as VOO for the Vanguard S&P 500 ETF. Double-check the fund name, because similar tickers exist.
- Choose dollars or shares. With fractional shares you can enter "$100" instead of a share count.
- Choose an order type. A market order buys at the next available price. A limit order sets the most you will pay. For widely traded funds during market hours, either works. Limit orders help in thinly traded stocks or volatile moments.
- Turn on dividend reinvestment if you want payouts to buy more shares automatically.
- Set up a recurring investment. Investing the same amount every payday, called dollar-cost averaging, builds the habit and takes timing out of your hands.
Step 6: Understand the taxes
Inside a 401(k) or IRA, buying and selling does not create a yearly tax bill. In a taxable account, it does. Dividends are generally taxed in the year you receive them, and selling at a profit creates a capital gain.
- Short-term gains (held one year or less) are taxed at your ordinary income tax rate.
- Long-term gains (held more than one year) get lower rates of 0%, 15% or 20%.
- Losses offset gains. If losses exceed gains, you can deduct up to $3,000 a year ($1,500 if married filing separately) against other income and carry the rest forward.
| 2026 long-term rate | Single (taxable income) | Married filing jointly | Head of household |
|---|---|---|---|
| 0% | Up to $49,450 | Up to $98,900 | Up to $66,200 |
| 15% | $49,451–$545,500 | $98,901–$613,700 | $66,201–$579,600 |
| 20% | Over $545,500 | Over $613,700 | Over $579,600 |
Source: IRS 2026 inflation adjustments as reported by Kiplinger; IRS capital gains guidance. Checked October 2026.
The holding period makes a real difference. Take a single filer with $80,000 of taxable income whose ordinary rate on the gain is 22%. Selling after 11 months means paying that 22%. Waiting past the one-year mark puts the gain in the 15% long-term bracket.
Common beginner mistakes
- Waiting for the "right time." Nobody reliably times the market. A regular schedule beats waiting for a dip that may come after prices have risen further.
- Selling in a downturn. The long-run average return of about 10% a year since 1928 includes every crash. Investors who sold during the bad years missed the recoveries.
- Trading too often. Commissions may be zero, but short-term gains are taxed at ordinary income rates, which are often higher than long-term rates.
- Owning one company's stock heavily, especially your employer's, which ties your paycheck and savings to the same business.
- Chasing tips from social media. The FTC says investment scams cost consumers $7.9 billion in reported losses in 2025, more than any other fraud category. Be wary of guaranteed returns and pressure to act fast.
- Ignoring fees on funds. A fund charging 1% a year costs more than 30 times as much as an S&P 500 index fund charging 0.03%.
Frequently asked questions
How much money do I need to start investing in stocks?
Very little. Fidelity and Schwab let you buy fractional shares of most US stocks and ETFs from $1, and Interactive Brokers from $0.01. Most large online brokers charge $0 commissions on online stock and ETF trades.
Should I open a Roth IRA or a brokerage account first?
If you are investing for retirement and qualify, many people start with a Roth IRA because qualified withdrawals are tax-free. In 2026 you can contribute up to $7,500, or $8,600 if you are 50 or older, and eligibility phases out between $153,000 and $168,000 of modified AGI for single filers. A taxable account has no limits and suits nearer-term goals.
Is it better to buy individual stocks or index funds?
For most beginners, index funds make a sensible core because they spread risk across hundreds of companies at very low cost. S&P Dow Jones Indices found 79% of active large-cap fund managers trailed the S&P 500 in 2025. Individual stocks can be added in a smaller portion if you want to research companies.
How are stock profits taxed in 2026?
In a taxable account, gains on stocks held more than one year are taxed at 0%, 15% or 20% depending on taxable income. For a single filer, the 0% rate applies up to $49,450. Gains on stocks held one year or less are taxed as ordinary income. Accounts like 401(k)s and IRAs defer or eliminate these taxes.
What happens to my stocks if my broker goes out of business?
Securities held at SIPC-member brokers are protected up to $500,000 per customer, including $250,000 in cash, if the firm fails and assets are missing. SIPC does not cover losses from falling prices.
Can I lose more than I invest in stocks?
Not when you buy stocks with your own cash: the most you can lose is what you put in. Borrowing on margin, short selling and some options strategies can create losses larger than your original investment.
Sources
- Kiplinger – IRS updates capital gains tax thresholds for 2026
- IRS – Ten facts about capital gains and losses
- NerdWallet – 2026 tax brackets and federal income tax rates
- 401k Specialist – IRS announces 2026 401(k) limit of $24,500; IRA limit $7,500
- SIPC – What SIPC protects
- FINRA – About BrokerCheck
- Charles Schwab – Latest round of enhancements to retail trading experience (June 2026)
- Charles Schwab – Fractional shares
- NerdWallet – Best brokers for fractional shares
- StockBrokers.com – Fractional shares brokers
- S&P Dow Jones Indices – SPIVA U.S. Year-End 2025
- S&P Dow Jones Indices – The 500: a brief look at an index icon
- NYU Stern (Damodaran) – Historical returns on stocks, bonds and bills
- AOL/FTC data – Americans lost a record $15.9 billion to scams in 2025
Rates, fees and terms change often. Figures were checked in October 2026; confirm current details with the provider before you apply.